Board Game Arena

Is there a "private arena"-type of feature? That is, a pre-formed group of members can be randomly assigned to each other to play a certain game for a set period of time or number of games. If not, has anyone created this sort of workaround? I can only imagine tracking it in Google Sheets....

I'd prefer that the black and gray colors are more differentiated. The black looks like dark gray, and the light gray looks like white.

We had a situation where someone gave the black pawn a card mistaking it for the gray card.

Pre-COVID, I'd always have a meetup with a Halloween-type theme. We played games like Deception, Arkham Horror, Betrayal on the House on the Hill (? something like that). Alas, none of these games are on BGA. Are there any other Halloween- or spooky-themed games you'd suggest for a group of players?...